Molding apparatus



June 9, 1936. E. w. KRONBACH MOLDING APPARATUS 2 Sheets-Sheet 1 FiledOct. 29, 1952 INVENTOR f 'n M/r/ 0fld[% WMMJ ATTORNEY June 9, 1936! E.w. KRONBACH 2,043,252

MOLDING APPARATUS Filed Oct. 29, 1932' 2 Sheets-Shee 2 F1 F1 7 1D. 137.11. H7413. FJE JE INVENTOR ATTORNEY Patented June 9, 1936 I 12,043,252 MOLDING APPARATUS Edwin W. Kronbach, Cleveland, Ohio,assignor,

by mesne assignments. to Joe Lowe Corporation, a corporation of DelawareApplication October 29, 1932, Serial Nat-10,220 Claims. (01. 107-8) Thepresent invention relates to the art of vided with handles 23 formanipulating the strucfor'ming, refrigerating and harvesting frozenture. The mold structure 20 is adapted to receive bodies such as ediblenovelties. a peg assembly 25, including pegs 26. Handles One of theobjects of the present invention is 21 are provided for manipulating thepeg assem- 6 to provide improved mechanism for withdrawing b1; 25. Themolds 20 are subjected to a freezing 5 confections such'as ice cream,water ices, shertemperature preferably by immersing the same bets, etc.,from the molds in which they are in a brine solution, and before theconfection is frozen. In carrying out this object, it is the solidified,the peg assembly 25 is inserted as further object to'provide a peg whichextends shown in Fig. 1 so that the confection freezes to into the moldand is frozen to the confection and the pegs 26. Preferably the pegassembly 25 is 10 which is formed to provide suiiicient lockingeninserted into a mold structure" prior to insertgagement with theconfection for withdrawing ing themold structure into the brine tank.After the confectionfrom the mold and sothatjt can the confection isfrozen the mold structure is be readily withdrawn from the frozenconfection withdrawn from the brine tank and the bond belli withoutbreaking the confection. tween the outer surface of the confection andthe Further. objects and advantages will be ap; individual molds isbroken andone manner of parent from the following description, referencecarrying this out is to immerse themold structure being bad to theaccompanying drawings wherein n in a warmliquid bath as shown in Fig. 2in which preferred forms. of embodiments are clearly there is provided atank 30 containing warm liquid loshown. 3 3|. Then by lifting thehandles 21 of the peg go In the drawings; assembly upwardly, the frozenconfection will be Fig. l is the side view, partly in section, of a"withdrawn from the molds 2| bythe pegs ll. mold and showing a pegassembly applied thereto; It may be desirable to add a coating to thecon- Fig. 2 is a side view of the peg and mold assem-' fection such as achocolate coating and this coat- 25, bly immersed in a defrosting tank;ingmay be applied while the frozen confection is Fig. 3 is a side viewof the peg assembly showbound to the pegs 26. Then after the coating hasing' frozen confections attached to the peg and hardened, theconfection'is released from the peg also showing this assembly above arack containand if desirable may be arranged to drop directly ingwrappers or bags; into bags 33, carried in spaced relation by a V Fig. 4is a fragmentary sectional view of the rack 34. Also if desirable ahandle stick may be so pegassembly showing the confection beingreinserted in the hole 35, formed by the peg 28, moved therefrom; afterthe peg is removed.

r Fig. 5 is a side view of the peg assembly, partly Referring more indetail to the drawings, in the in section, showing the pegs in theirlowermost embodiments shown, my p s assembly includes UNITED STATESPATENT OFFICE 85 position; v two main elements; namely, a grid structureindi- Fig. 6 is a fragmentary top plan view of the cated generally as 31ands, Deg structure indipeg assembly; cated generally as 38. The gridstructure in- Fig. 7 is a sectional view taken on line l--'I of cludes aplate having four rows of aligned slots a Fig. 5; i h and in the presentinstance six slots are provided Fig. 8 is a fragmentary sectional viewlooking in each row. Frames e attached to the oppo- 40 in the samedirection as Fig. '1; site ends of the plate 4 which frames, includingFig. 9 is a sectional view taken on line 9-9 of uprights II, areconnected at the top by the han- Fig. 8; v I dle bar 21 and by whichhandle the entire peg Fig. 10 is aview showing a modified form ofassembly may be manipulated. The peg strucpeg; i .ture includes twoparallelly disposed inverted U- 45 Fig. 11 is a sideview, partly insection, of the shaped angle irons l2 spaced from one another shown inFig. 10; whereby the structure may receive posts 43, which Fig. 12 isafront viewof another modified form posts are attached to the plate 40of the grid of peg; and structure. The opposite ends of the pegstructure Fig. 13 is a side view of the peg shown in Fig. 12. areprovided with frames including uprights I! 50 Referring to the drawingsin general, there is which are connected at their upper end by a shown amold structure 20 including a plurality handle bar 4B. These frames andthe strips 61 of individual molds 2| adapted to contain the tiethe angleirons. The strips 41 are arranged confection material to be frozen.Molds 2| deto engage washers 48 secured to the posts 48 to 6 pend from areceiving container 22, which is prolimit the upward movement of the pegstructure,

The sides ll of the angle irons l2 receive pins II and each pin carriestwo pegs or spurs 26. These pegs are loosely mounted upon the pins sothat they can wobble slightly and are maintaind in 5 operative positionby a sleeve '2. Any suitable means may be provided for holding the pinsII in place.

In order to prevent the peg assembly from being inserted into the moldstructure 20 too far, studs 55 are secured to the uprights II and arearranged to engage the top of the container 22 to limit the downwardmovement of the peg assembly. Frost, frozen confection and coatinghowever, tend to cling to the peg above the frozen confection and it isdesirable to remove those materials on each operation of the mechanism.In order to accomplish this, the slots in the plate 40 are arranged tosnugly embrace the faces of the pegs 26 so as to provide a wiper for thefaces. The pegs are often bent out of shape through usage and in orderto prevent the pegs from binding in the slots the lower parts of thepegs are made thinner as at 5' and by reason of the loose connection ofthe peg 26 with the pin Si, the pegs must be bent considerably beforethey will bind with the walls of the slots even when the pegs are intheir uppermost position.

It has been found in general practice that I when a peg is used havingthe same width 30 throughout the length of the part, which is embeddedin the frozen confection, the time interval between the time when theconfection is not frozen to the pegs sufliciently for permitting thepegs to withdraw the frozen confection from the molds and the time whenthe frozenconfection is bound sufficiently to the pegs so that the pegscan be utilized for withdrawing the frozen confection from the mold, isvery short. It has also been found that if refrigeration is applied 40to the confection to a slight extent and in excess of that necessary tosumciently bind the peg and confection for the withdrawal of theconfection,

the confection is frozen to the peg so solidly that it is very dimcuitto withdraw the peg. In accordance with my invention I have eliminatedthis difficulty. I have discovered that by tapering the side walls ofthe peg inwardly as shown in Fig. 9, the peg can be withdrawn-morereadily.

When the confection is solidly frozen to or bound with the peg, the bondbetween the confection and the peg is not broken at the peg when it iswithdrawn but a small amount of confection clings to the peg. The lineof breakage is not even throughout the length of the 'peg and at timesgreater quantities, in the formof knobs, of

confection cling to the lower end of the peg and in withdrawing the peg,this greater quantity must be torn through the confection which in manycases causes injury to the confection, par- 00 ticulariy when a coatingis applied thereto. By

tapering the peg and in withdrawing the same,

the cross section of the peg gradually decreases as it approachesthe topof the hole formed by the peg so that if knobs of confection cling tothe 05 bottom of the peg, the enlarged opening in the top of theconfection permits the passage of the knobs.

It is to be understood that the molds 2| and the lower part only of thereceiving container 22 70 are immersed in the refrigerating brinesolution.

The upper part of the container 22 and the peg assembly 2| are subjectedto a somewhat warmer environment. It is apparent therefore that solidfreezing or hardening, in the case of ice cream or 75 the like, willfirst t ke place in the lower part of jthe mold and then on the verticalsides, as shown in Fig. i. The part adjacent the upper end of the pegswill be the last to freeze solidly or harden. Therefore, the bindingfreezing action between the confection and peg first takes place at 5the lower part of the peg.

I have discovered that, by providing a cut-away portion or a ledge-like,portion at the bottom of the peg, an adequate bond, for withdrawing theconfection from the mold by the peg, is pro- 10 vided although theconfection is not thoroughly hardened and bonded with the peg throughoutthe length thereof. Therefore it is not necessary to continue therefrigeration of the confection until it is thoroughly bonded to the pegbe- 15 fore attempting to withdraw the same by the Des.

In actual practice the time necessary for freezing the confection to thepeg sufficiently for withdrawing the confection from the mold by the peg2 is determined. In order that the mold may be re-used as quickly aspossible, the fixed time for refrigerating is calculated to the timewhen there is a bond between the peg and confection of sufficientstrength for withdrawing the confection by 25 the peg. In view of thefact that the cut-away or ledge-like portions provide such bond longprior to a thorough bond between the confection of peg throughout theentire length of the peg.

a large tolerance" of time is had between the time 30.

when the confection can be withdrawn from the mold and the time when thebond is such that it is difficult to separate the confection from thepeg. Therefore, it is apparent that overbonding to such an extent thatit will be difficult to re- 35 move the confection from the mold, isunlikely. Moreover, in case the mold is permitted to remain in therefrigerating tank longer than necessary, the taper permits thewithdrawing without injuring the confection. 40

The cut-away portions or ledge-like portions of the pins for providing alocking engagement with the confections may be formed in differentmanners, but obviously they should be formed in such a manner that theywill permit the ultimate 45 withdrawal of the pins from the confectionswithout seriously rupturing the openings thereby formed or otherwisespoiling the confections. In Figs. 8 and 9, the ledge-like portions areprovided by the bottom walls "I of recess II while 50 in Figs. 10 and11, the ledge-like portions are provided by the bottom walls ll of theholes I. The recesses 58 and holes ll permit freezing of the confectionthrough the pegs and'in addition provide the lifting ledges. Ifdesirable the lower 55 part of the peg may be provided with a slot orslots ll as shown in Figs. 12 and 13 in which the confection freezesthrough the peg to thoroughly bind therewith.

While the forms of embodiments of the present 60 invention as hereindisclosed constitute preferred forms, it is to be imderstood that otherforms might be adopted, all coming within the scope of 'the claims whichfollow. 1

what I claim is as'follows: 5

1 In a refrigerating device. mechanism for forming frozen confections ofthe type in which each has an opening, and for withdrawing theconfections from the molds in which they are frozen, comprising a gridstructure having openings, a peg structure including a plurality ofpegs. said pegs extending downwardly through the openings in said gridstructure, the lower ends of the pegs adapted to extend into a mold,said lower ends being tapered downwardly and prog vided with inwardlyextending ledge portions for locking the confections to the pegs, saidpegs providing means for withdrawing the confections from the molds inwhich they have been frozen and for forming a cored openingrespectively, said structures being movable toward one another forcausing engagement of the tops of the confections and the lower side ofthe grid structure to break the bond between the pegs and confections.

2. In a refrigerating device, the combination I with a mold structureincluding a plurality of individual molds for containing confectionmaterial to be frozen, of means for withdrawing the solidifiedconfection material from the molds when frozen comprising a rack havinga plurality of fixed pegs mounted thereon and depending therefrom, oneof said pegs being adapted to extend into the confection material ineach of the individual molds and to be frozen therein, the lower ends ofsaid pegs having ledge portions formed therein to provide locking meansbetween the peg and the frozen confection material, which locking meansis within the confines of the peg and permits withdrawal of the peg fromthe frozen confection without rupturing the opening formed thereby.

3. In a refrigerating device, the combination with a mold structureincluding a plurality of individual molds for containing confectionmaterial to be frozen, of means for withdrawing the solidifiedconfection material from the molds when frozen comprising a rack havinga plurality of fixed pegs mounted thereon and dependingtherefrom, one ofsaid pegs being adapted to extend into the confection material in eachmold and to be frozen therein, the lower ends of said pegs being tapereddownwardly and being notched to form inwardly extending ledges toprovide locking means between the pegand the frozen confection material.

4. In a refrigerating device, the combination with a mold structureincluding a plurality of individual molds for containing confectionmaterial to be frozen, of means H for withdrawing the solidifiedconfection material from the molds when frozen comprising a rack havinga plurality of fixed pegs mounted thereon and depending therefrom, oneof said pegs being adapted to extend into the confection material ineach mold and to be frozen therein, the lower ends of said pegs beingbifurcated and tapered downwardly to facilitate their removal from thefrozen confection material.

- 5. In a refrigerating device, the combination with a mold structureincluding a plurality of individual molds for containing confectionmaterial to be frozen, of means for withdrawing the solidifiedconfection material from the molds when frozen comprising a rack havinga plurality of fixed pegs mounted thereon and depending therefrom, oneof said pegs being adapted to extend into the confection material ineach moldand to be frozen therein, the lower ends of said pegs beingtapered downwardly and being with the frozen confection material.

EDWIN W. KRONBACH.

